Marques Marc Josep Montagut, Masuji Takayuki, Adel Mohamed, Fath El-Bab Ahmed M R, Hirose Kayo, Uchida Kanji, Sugime Hisashi, Umezu Shinjiro
Department of Integrative Bioscience and Biomedical Engineering, Waseda University, Tokyo, Japan.
Department of Modern Mechanical Engineering, Waseda University, Tokyo, Japan.
Cyborg Bionic Syst. 2025 Aug 5;6:0337. doi: 10.34133/cbsystems.0337. eCollection 2025.
Advancements in health wearable technology hold the potential to prevent critical health issues such as hyponatremia and other hydration-related conditions often triggered by intense physical activities. Approaches to address this issue include the development of thin-film wearable sensors incorporating carbon nanotubes (CNTs), which offer scalability, lightweight design, and exceptional electrical properties. CNT paper serves as an ideal substrate for electrochemical sensors like ion-selective membranes (ISMs), enabling effective on-skin electrolyte monitoring. However, current on-skin devices often face limitations in maintaining performance during human motion. This study introduces a bioinspired surface texturing technique that mimics the microstructures of rose petals to enhance wettability, self-cleaning, and ISM sensitivity. By replicating the mechanical properties of the surface texture found on rose petals, the newly developed ISM achieves accurate measurements across a 2-mm air gap, offering an improved interfacing solution that promotes better sweat recirculation and comfort. This advancement overcomes the constraints of traditional sensors, paving the way for more reliable and effective noninvasive health monitoring in real-world conditions.
健康可穿戴技术的进步有可能预防严重的健康问题，如低钠血症以及其他通常由剧烈体育活动引发的与水合作用相关的病症。解决这一问题的方法包括开发包含碳纳米管（CNT）的薄膜可穿戴传感器，这种传感器具有可扩展性、轻量化设计以及卓越的电学性能。碳纳米管纸是离子选择性膜（ISM）等电化学传感器的理想基底，能够实现有效的皮肤表面电解质监测。然而，目前的皮肤表面设备在人体运动过程中往往难以维持性能。本研究引入了一种受生物启发的表面纹理化技术，该技术模仿玫瑰花瓣的微观结构，以增强润湿性、自清洁能力和离子选择性膜的灵敏度。通过复制玫瑰花瓣表面纹理的机械性能，新开发的离子选择性膜在2毫米气隙范围内实现了精确测量，提供了一种改进的接口解决方案，促进了更好的汗液再循环和舒适度。这一进展克服了传统传感器的限制，为在现实条件下进行更可靠、有效的无创健康监测铺平了道路。
